Type-writing machine



UNITED STATES PATENT OFFICE.

-GODFREY II. LASAR, OF ST. LOUIS, MISSOURI.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 415,535, dated November19, I889.

Application filed June 28, 1887. Renewed July 11, 1889. Serial No.317,172. (No model.)

have invented a certain new and useful Im-v provement in Type-W'ritingMachines, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification, and in which Figure I is a top or plan viewshowing the platen and guide and part of the carriage of a typewriter,the guide being provided with my improvement. Fig. II is an end view ofthe carriage, including the platen and guide. Fig. III is a transversesection taken on line III III, Fig. I. Fig. IV is an enlarged detailperspective view of the upper part of the guide. Fig. V is a perspectiveview of one of the arms to which the upper part of the guide is secured.Fig. VI illustrates a slight modification of the guide, and Fig. VII isa detail view of the upper end of the lower part of the guide.

My present invention 'relates to the construction or form of the guide;and it consists in features of novelty hereinafter fully described, andpointed out in the claims.

Referring to the drawings, 1 represents the carriage, 2 the platen, and3 the lower part, and 4 the upper part, of the paper guide and holder.

My invention, as stated, relates to the construction or form of thisguide and holder. The lower part 3 of the guide is rigidly se cured tothe carriage and extends, preferably, from the rear inwardly to a point5. The upper part 4 of the guide is in a separate piece from the part 3,and is pivoted by screws (5 or other suitable means to the upper end ofarms'7, connected by a rod 8 to the frame of the carriage. This part ofthe guide is preferably of the shape in transverse section shown in Fig.III and is provided with end pieces 9. Its lower portion is bulged out,as shown at 10, to receive a roller 11, having journal-pins 12, fittingin the ends 9 and slots 13 of the arms 7. The upper end 5 of the part 3of the guide extends, preferably, slightly beyond the lower end 22 ofthe part 4 of the guide, so that the paper being inserted, as shown bydotted line in Fig. III, is directed toward the platen from the part 3the paper too far for one line.

of the guide. The roller 11 bears against the platen 2, and the upperend 14 of the part 4 of the guide also bears upon the platen, and when asheet or sheets of paper are inserted these parts hold the sheet orsheets closely against the platen, and, the part 4 being pivoted at 6 tothe arms 7 and the journal of the roller fitting in the slots 22, itwill be seen that the part 4 will rock on its pivot 6 to adjust itself,so that both the roller and the upper end 14 of the part 4 of the guidewill always press evenly upon the paper. The part 4 of the guide ismoved to and from the platen by means of a lever 15 on the shaft or rod8, which has ratchet-and-pawl connection 16 with one end of thecarriage. By means of this arrangement a broad and equal bearing isbrought upon the paper to hold it firmly against the platen and conformit to the shape of the platen, so that when the types strike the paperit will not spring downwardly and rise again when the types leave it,but will be held firmly on the platen. The upper edge or end 14 of thepart 4 of the guide presses upon the paper near the striking-point ofthe type, and this edge of the guide is graduated, as shown in Fig. I,so as to form an indicatingscale, the guide being thus used as a scalein addition to holding the paper upon the platen.

In Fig. VI I have shown a slight modification, where the upper end 5 ofthe part 3 of the guide is shortened and the lower end of the part 4 ofthe guide is extended downwardly and has a return-bend 17, whichreceives the paper from the part 3 of the guide and directs it behindthe roller 11.

In Fig. VII I have shown the upper end of the part 3 of the guide withslots 18 to make it more flexible or yielding to the paper.

In addition to holding the paper down upon the platen, the end 14 of theguide acts as a device to control the movement of the roller to overcomethe momentum of the roller in rapid work, when the roller is liable tocarry The pins 12,

fitting in the slots 13, allow the part 4 of the guide to rock, butlimit the rocking when the guide is thrown back from the platen, so thatneither the roller 11 nor the end 14 of the guide is allowed to swingagainst the platen.

In another application, Serial No. 315,144,

filed March 28, 1887, I have shown and described an apron or guide forthe paper having a roller bearing on the platen. Such construction I donot claim in this application.

I claim as my' invention 1. In a type-Writer, in combination with theplaten, the guide formed of two parts, the upper part being pivoted tosupporting-arms and provided with a roller, substantially as and for thepurpose set forth.

2. In a type-writer, in combination with the platen, a guide made in twoparts, pivot-e1 arms to which the upper part of the guide is pivoted,roller located in the upper part of the guide, and slot-and-pinconnection beset forth.

GODFREY H. LASAR. In presence of GEO. I-I. KNIGHT, J Os. \VAHLE.

